Metal Mesh Welding Layout for Fast Format Changes

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Solution Overview

Problem

Existing apparatuses for producing metal meshes are inefficient in creating close meshes with varying rod diameters, require complex and costly repositioning of feed units, and result in significant downtime and waste during format changes, limiting flexibility and increasing maintenance needs.

Innovation Solution

An apparatus comprising two coordinated operating groups to feed and weld longitudinal and transverse rods with adjustable pitches and diameters, allowing for the production of metal meshes with desired sizes and configurations, featuring a control unit for programmable operation and reduced component count.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If individual feed units are repositioned to produce close meshes or meshes with different rod diameters, then manufacturing flexibility is improved, but equipment downtime and operational complexity increase significantly

Engineering Contradiction:
Improvemanufacturing flexibilityVSAvoidequipment downtime
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent implements a dynamic positioning system where the feed unit can be moved along the longitudinal axis of the machine frame. This allows the feed unit to be repositioned to different locations corresponding to different longitudinal rod positions, enabling production of meshes with varying rod diameters and pitches without requiring complete disassembly or complex reconfiguration of the entire system

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The feed unit is designed as a universal, multi-functional component that can handle different rod diameters and positions. By making the feed unit itself adaptable rather than having dedicated feed units for each rod position, the system achieves versatility while minimizing downtime through standardized replacement and positioning procedures

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Manufacturing precision

If multiple individual feed units are used to supply longitudinal rods, then rod positioning precision is improved, but device complexity and maintenance requirements increase

Engineering Contradiction:
Improverod positioning precisionVSAvoidequipment complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The system segments the feeding function into two distinct phases: first, the feed unit supplies individual longitudinal rods one at a time to the welding unit; second, these rods are positioned and welded in sequence. This segmentation allows precise control of each rod independently while simplifying the overall system architecture compared to having all feed units operating simultaneously

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Instead of having multiple feed units supply all longitudinal rods simultaneously (the conventional approach), the patent inverts the process by supplying longitudinal rods sequentially one at a time. This inversion simplifies the feed unit design and reduces complexity while maintaining positioning precision through controlled, sequential delivery to the welding position

Inventive Principle:
Principle #13The other way round (Inversion)

3Adaptability or versatility

If feed units are repositioned for format changes, then adaptability to different mesh specifications is improved, but productivity during repositioning operations deteriorates

Engineering Contradiction:
Improveformat change capabilityVSAvoidproduction rate
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The feed unit is designed with preliminary positioning capabilities, allowing it to be pre-positioned at different locations along the machine frame corresponding to different mesh formats. This preliminary preparation enables quick format changes without requiring complex real-time adjustments during production, thereby minimizing interruption to the production flow

Inventive Principle:
Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables efficient production of metal meshes with flexible rod configurations and reduced setup and downtime, improving adaptability and reducing maintenance requirements.

Implementation Method 1

a first welding unit to weld on each occasion to said first longitudinal rods the transverse rod fed by the second feed group

Methodology Applied
Scientific EffectWelding: Welding

Data Source

PatentEP3573777B1Apparatus and method to make a metal mesh
Publication Date: 2021.01.20 M E P MASCH ELECTRONICS PIEGATRICI SPA
  • EP3573777B1 patent drawingFigure 1
  • EP3573777B1 patent drawingFigure 2
  • EP3573777B1 patent drawingFigure 3~5

AI summary

Apparatxis (10) to make a metal mesh (11) having longitudinal rods (13, 15) and transverse rods (14) which have a diameter and reciprocal pitch defined on each occasion according to requirements, comprising a first operating group (16) and a second operating group (34) disposed in sequence and functionally coordinated, to obtain a reticular semi-worked product (12) that is completed to make the desired metal mesh (11).